Ti:Sapphire
Titanium Doped Sapphire Crystal (Ti:Sapphire)
Basic Properties
| Chemical formula: | Ti3+: Al2O3 |
| Crystal structure: | Hexagonal |
| Lattice constants: | a=4.758, c=12.991 |
| Density: | 3.98 g/cm3 |
| Melting point: | 2040oC |
| Mohs hardness: | 9 |
| Thermal conductivity: | 52 W/m/k |
| Specific heat: | 0.42 J/g/k |
| Laser action: | 4-Level Vibronic |
| Fluorescence lifetime: | 3.2μs (T=300K) |
| Tuning range: | 660 – 1050 nm |
| Absorbtion range: | 400 – 600 nm |
| Emission peak: | 795 nm |
| Absorption peak: | 488 nm |
| Refractive index: | 1.76 @ 800 nm |
| Peak Cross-section: | 3-4×10-19cm2 |
| thermal Expansion: | 8.40×10-6/℃ |
Standard product specifications
* Orientation: Optical axis C normal to rod axis
* Ti2O3 concentration: 0.06 – 0.26atm %
* Figure Of Merit(FOM): 100~250(>250 available on special requests)
* α490: 1.0-4.0cm-1
* Diameter: 2-30mm or specified
* Path Length: 2-30mm or specified
* End configurations: Flat/Flat or Brewster/Brewster ends
* Flatness: <λ/10 @ 633 nm
* Parallelism: <10 arc sec
* Surface finishing: <40/20scratch/dig to MIL-PRF-13830B
* Wavefront distortion: <λ/4 per inch
